INCO法处理含氰电镀废水的试验研究
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摘要
对采用焦亚硫酸钠/空气法处理含氰电镀废水进行了试验研究。结果表明,在pH为10.0,焦亚硫酸钠投加量为CN-质量的7.5倍,曝气量为300 L/min的条件下,处理60 min后的废水中总氰化物浓度低于0.3mg/L,具有较好的除氰效果。
This article gives a description of treating electroplating wastewater containing cyanide by Na_2S_2O_5/Air method. The research results showed that,under the optimal condition that,the pH value was 10,the ratio of Na_2S_2O_5 to CN-was 7.5 to 1,the air provision was 300 L/min,the reaction time was 60 minutes,a desirable result was achieved that the cyanide mass concentration of treated electroplating wastewater containing cyanide was decreased to 0.3mg/L.
This article gives a description of treating electroplating wastewater containing cyanide by Na_2S_2O_5/Air method. The research results showed that,under the optimal condition that,the pH value was 10,the ratio of Na_2S_2O_5 to CN-was 7.5 to 1,the air provision was 300 L/min,the reaction time was 60 minutes,a desirable result was achieved that the cyanide mass concentration of treated electroplating wastewater containing cyanide was decreased to 0.3mg/L.
引文
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[4]Oleson.J.L,Lin H K,Walsh D E.Modeling of SO2/air cyanide destruction process[J].Minerals&Metallurgical Processing,2005,22(4):199-204.
[5]国家环境保护总局《水和废水监测分析方法》编委会.水和废水监测分析方法[M].4版.北京:中国环境科学出版社,2002.
[2]高大明.含氰废水处理技术20年回顾[J].黄金,2000,21(1):46-49.
[3]杨洪泽,文朝阳.氯氧化法、二氧化硫-空气氧化法联合处理超高浓度含氰电镀废液[J].地方病通报,2003,18(3):87-88.
[4]Oleson.J.L,Lin H K,Walsh D E.Modeling of SO2/air cyanide destruction process[J].Minerals&Metallurgical Processing,2005,22(4):199-204.
[5]国家环境保护总局《水和废水监测分析方法》编委会.水和废水监测分析方法[M].4版.北京:中国环境科学出版社,2002.